Ophthalmic mounting



July 10, 1923..

H. H. STYLL OPHTHALMIC MOUNTING Filed March 12. 1920 I NVENTOR HARP) H. STYLL- :"2 ATTORNEYS Patented July I0, 1923. i v

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HARRY H. STYLL, OF SOUTHBEIIJG E, MASSACHUSETTS.

OPHTHALMIC MOUNTING.

Application filed March 12, 1920.

To all whom it may concern.

Be it known that I, HARRY H. S'rYLL, a citizen of the United States, residing at Southbridge, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Ophthalmic Mountings, of which the following is a specification.

This invention relates to improvements in ophthalmic mountings and has particular reference to that type of mounting commonly known as a finger-piece, in which the mounting is retained on the face by pivoted spring actuated guard arms or the like.

The principal object of the present invention is the provision of a novel and improved construction of mounting in which the parts may be readily constructed and in which their case of assemblage and of operation will be facilitated, and which will consequently commend itself on account of these advantages both to the manufacturer and to the consumer.

A further object of the present invention is the provision of a construction of this character which may if desired be so constructed as to reduce to a minimum the use of solder in forming the mounting and thus the softening and drawing of its temper, a'n objectionable feature hitherto presented by mountings of this type in the past.

Other objects and advantages of my improved construction should be readily apparent by reference to the following specification taken in connection with the accompanying drawings, and it will be understood that I may make any modifications in the specific details of construction shown and described within the scope of the ap pended claims without departing from or exceeding the spirit of the invention.

Figure I represents a front elevation of a mounting embodying my improvements.

Figure II represents a fragmentary sectional view of one form thereof.

Figure III represents a similar view with the parts in disassembled relation.

Figure IV represents a sectional view of another modification.

Figure V represents a similar view illustrating a slightly different form thereof.

Figure VI illustrates a slight variation of the structure shown in Figure V.

In the drawings, the numeral 1 designates the lenses which are suitably connected as by the lens attachments 2 to the ends of Serial No. 385,184.

the bridge or lens connecting member 3. This member 3 is connected at each end adjacent the lens attachment with a seat portion 4 for the guard lever 5 hearing at its forward end the finger-piece or actuating portion 6 and at its rearward end the guard 7 for engagement with the nose to retain the mounting in position on the face.

In that form of the invention illustrated in Figure II for example, I have shown as secured within the seat 4 and projecting upward thereabove the tube 8, while slidably engaged upon the tube 8 is the loose sleeve 9 having the outwardly extending peripheral flange 10 providing a spacing member. The lever 5 is rotatably mounted upon the lower end of the sleeve beneath the spacing member or flange 10 which extends laterally over the lever so as to engage the latter and prevent any rocking or tilting movement on the pivot while permitting of its free rotation.

Similarly the portion of the sleeve projecting above the flange serves to center the actuating springll which is retained in position as is the sleeve 9 itself by the head of the screw 12, which is screwed into the sleeve 8.

In Figure III, I have shown a slight modification of the just described construc tion in which the sleeve 9 is further pro vided with the outwardly extending flange 13 at its upper end serving to hold the spring 11 in place thereon as a unitary structure so that the member 9 with the spring a unit separate from the lever but capable of ready insertion within the aperture of the lever when the whole may as a unit be slipped into position on the rigid post member 8 carried by the bridge seat, thus facilitating assembling of the parts which may be subsequently locked in place by the screw 12.

A further advantage of this construction is that should the bearing become at all worn or the spring itself wear out, the screw 12 may be removed and the part 9 and spring be removed, leaving the lever in place on the mounting, and a new spring and centering and bearing member substi tuted and again secured in position.

A further development is illustrated in connection with Figure IV, in which in place of the single sleeve member 9 there is a lower tubular sleeve or washer member 14. fitting within and forming a bearing for the lever 5, while separate from but mounted on the member 1a is a second flanged or spun tube 15 which carries the spring 11 as a unit therewith and serves as a spacing membeiv fitting between the member 14- and the head of the screw so that as the screw is tightened against the member 15 the member 14L- will be pressed down toward the member at to better support and hold the member 5 against tilting movement.

It preferred, in place of making use of the separate fastening member 12' and the tube 8 to receive the member 19,, I may form the post 16 on or secured to the bridge seat with a threaded upper portion 17, as shown in Fig. V and if desired a reduced end 15, while the tube 9, is provided with an interior thread as at 19 at its upper end for engagement with the thread 17 of the post having the recesses 20 to receive the prongs 21 of a spanner which way thus be easily engaged with the member 9to secure it in po sition. This spanner may if desired be subsequently employed to secure in position retaining nut 20 engaged on the reduced upper end 18 of the post and also locked by the spanner. As an alternative to this construction. if desired to dispense with the locking nut, I may secure theypost in the bridge seat, as shown in Figure Vl, by threading thereinto its lower end and spinning it over as at 22, and may :torm the tube or member 9 with the upper or top flange 13' similar to the member shown in Figure III, with the exception that the tube is here interiorly threaded at its upper end so that it may be screwed onto the post by a spanner, thus at the one time providing a bear ing member and a spring bearing recess, the member being locked by slightly heading or spinning over the upper end of the post. I have here provided a structure which may be readily assembled, in that the post is rigidly held or supported by the bridge and the lever and tubular member may both he slipped onto the post, the tubular member anors being threaded to finally lock it in position, said tubular member carrying the necessary spring for actuation of the guard level. Th is form of mounting eliminates all possibility 01'? loss or dropping 01" the parts during the assembling operation due to the rigid receiving post on the bridge and the fa ct that the lerer and tubular member may both he slipped over the post while the parts may be readily locked through turning of the tubular member as it approaches itslinal position.

I claim: 7 I. iounting oi the character described comprising a bridge having a post rising therefrom provided with threaded ends, a guard lever and a securing device for the guard lever having a bearing portion en rircling the post and projecting through the guard lever, ha ing steadying portion laterally en agi, lever and an upwardly orojccting spring receiving portion, and iug receiving portion being interiorly l l t r ,=n to ioclringly engage the post.

3 9r mounting of the clutracter d'escr. bed

tom n u l e having a post rising thereirom pr iivided with threaded ends, a guard lever and a securing device for the guard lever haying a bearing portion encircling the zost and projecting through the guard lever, having a steadying portion latera y engaging the lever and an upwardly projectingspring receiving portion, said spring receiving portion being interiorly threaded to lockingly engage the post, and a lock nut member engaged on the post above the securing device to further secure the parts in position.

In testimony whereof l have allixed my signature, in presence of two witnesses.

HARRY n. srYLL.

l Vitnesses Amen G. HAsnnLL ESTHER M. Lamina. 

